CN109827740B - Multipoint adjusting type turbulence device for wind tunnel test - Google Patents
Multipoint adjusting type turbulence device for wind tunnel test Download PDFInfo
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- CN109827740B CN109827740B CN201910263339.3A CN201910263339A CN109827740B CN 109827740 B CN109827740 B CN 109827740B CN 201910263339 A CN201910263339 A CN 201910263339A CN 109827740 B CN109827740 B CN 109827740B
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Abstract
The invention discloses a multipoint adjusting type turbulence device for a wind tunnel test, which comprises a wind shielding substrate and wind field adjusting units, wherein the wind shielding substrate is vertically arranged, a plurality of wind field adjusting units are arranged on the wind shielding substrate, each wind field adjusting unit comprises a spoiler and a motor assembly, the motor assembly is arranged on the wind shielding substrate, and the spoilers are arranged on an output shaft of the motor assembly. The invention has the obvious effects that the scheme has the advantages of convenience and quickness by arranging the plurality of wind field adjusting units on the traditional wind shielding base plate (wedge) and adjusting the wind field according to the position, the posture and the number of the wind field adjusting units.
Description
Technical Field
The invention relates to a wind tunnel turbulence device, in particular to a multipoint adjusting type turbulence device for a wind tunnel test.
Background
Wind tunnel experiments are an indispensable component in flight development work. The method plays an important role in the research and development of aviation and aerospace engineering, and is indispensable in the fields of transportation, building construction, wind energy utilization and the like along with the development of industrial aerodynamics. In the wind tunnel test, the flowing state of wind is easy to control, the model or the object is fixed in the wind tunnel to repeatedly blow, and experimental data can be obtained through a measurement and control instrument and equipment. The wedges and the rough elements are widely applied to atmospheric boundary layer simulation in wind tunnel tests, and the average wind speed and the turbulence degree profile of different topographic features can be simulated through the shapes and the distribution of the wedges and the rough elements.
When a wind tunnel experiment is performed, a spoiler is usually installed on the wedge, and the wind field in the wind tunnel is adjusted by adjusting the position and the area of the spoiler. Traditionally, the spoiler passes through bolt fixed mounting on the wedge, for adjusting out the wind field of needs, needs the frequent business turn over wind tunnel laboratory of experimenter to the position and the spoiler area of manual constantly changing the spoiler, accommodation process is loaded down with trivial details, and required time is very long.
Disclosure of Invention
The invention provides a turbulence device for determining a wind field according to the height position and the number of wind field adjusting units and the specific posture of the wind field adjusting units.
The technical scheme is as follows:
the utility model provides a wind tunnel test multiple spot regulation formula vortex device which the key lies in: comprises a wind shielding base plate and a wind field adjusting unit;
the wind shielding base plate is vertically arranged, a plurality of wind field adjusting units are arranged on the wind shielding base plate and comprise spoilers and motor assemblies, wherein the motor assemblies are arranged on the wind shielding base plate, and the spoilers are arranged on output shafts of the motor assemblies.
The technical scheme has the remarkable effects that: two rows of wind field adjusting groups are arranged on the wind shielding substrate, each wind field adjusting group comprises a plurality of wind field adjusting units, and finally the shape of the wind shielding substrate is changed by the height positions and the number of the wind field adjusting units and the specific postures of the wind field adjusting units, so that the aim of adjusting the wind field is fulfilled.
Two rows of wind field adjusting groups are arranged on the same side face of the wind shielding base plate, the two rows of wind field adjusting groups are respectively close to two vertical edges of the wind shielding base plate, each wind field adjusting group comprises a plurality of wind field adjusting units, and the wind field adjusting units are vertically distributed;
the utility model discloses a wind shield, including base plate, motor element, spoiler, motor element, casing, vertical setting of rotary hollow shaft, the motor element sets up the side of base plate keeps out the wind, motor element includes the casing and the rotary hollow shaft of the outside output of this casing, and this rotary hollow shaft forms motor element's output shaft, the casing is fixed to be set up keep out the wind any side of base plate, the vertical setting of rotary hollow shaft, rotary hollow shaft is close to keep out the wind the vertical edge of base plate, install on the rotary hollow shaft the spoiler, the vertical setting.
The wind field adjusting device is characterized in that a bar-shaped support lug is arranged at the top of the wind shielding base plate, the bar-shaped support lug is horizontally arranged, the bar-shaped support lug and the motor assembly are located on the same side face of the wind shielding base plate, the bar-shaped support lug is located above the motor assembly, an installation base is arranged at the bottom of the wind shielding base plate, through holes are vertically formed in two ends of the bar-shaped support lug respectively, two vertical shafts are vertically arranged between the bar-shaped support lug and the installation base and are respectively close to two vertical edges of the wind shielding base plate, the upper ends of the two vertical shafts are respectively arranged in the through holes in the two ends of the bar-shaped support lug in a penetrating mode, the lower ends of the vertical shafts are inserted in the installation base, the two vertical shafts correspond to the two wind field adjusting groups one to one, and the.
The motor assembly further comprises a motor body and a transmission gear set;
the motor body and the transmission gear set are both positioned in the shell, the rotating hollow shaft penetrates through the shell, the rotating hollow shaft is installed in the shell through a bearing, and the rotating hollow shaft is vertical to an output shaft of the motor body;
the transmission gear set comprises a first gear and a fifth gear, the fifth gear is fixedly sleeved on the outer wall of the rotating hollow shaft, the first gear is fixedly sleeved on the output shaft of the motor body, the fifth gear is located in the shell, and the first gear is in transmission fit connection with the fifth gear.
The transmission gear set further comprises a second gear, a worm wheel, a third gear and a fourth gear;
the worm gear mechanism is characterized in that a first bearing seat and a second bearing seat are arranged in the shell, two ends of the worm are respectively installed on the first bearing seat and the second bearing seat through bearings, the worm is parallel to an output shaft of the motor body, the second gear is fixedly sleeved on the worm, the first gear is meshed with the second gear, a worm gear shaft and a gear shaft are arranged in the shell, the worm gear shaft is fixedly sleeved with the worm gear, the worm gear is meshed with the worm, the worm gear shaft is further fixedly sleeved with the third gear, the worm gear and the third gear rotate coaxially, the gear shaft is fixedly sleeved with the fourth gear, the third gear is meshed with the fourth gear, and the fourth gear is meshed with the fifth gear.
A hollow shaft through hole is formed in the shell, the rotating hollow shaft penetrates through the hollow shaft through hole, a first conical bearing and a second conical bearing are arranged on the rotating hollow shaft, the first conical bearing and the second conical bearing are fixedly sleeved on the outer wall of the rotating hollow shaft, and the outer ring of the first conical bearing and the outer ring of the second conical bearing are respectively abutted against the inner wall of the hollow shaft through hole;
the fifth gear is fixedly sleeved on the rotating hollow shaft between the first conical bearing and the second conical bearing.
The shell comprises an upper shell and a lower shell;
the upper shell and the lower shell are buckled with each other, the first bearing seat and the second bearing seat are arranged on the upper shell, the worm wheel shaft is parallel to the gear shaft, the first conical bearing is arranged in a hollow shaft through hole of the upper shell, and the second conical bearing is arranged in a hollow shaft through hole of the lower shell.
The body of the motor body is fixedly arranged on the lower shell.
The spoiler comprises a spoiler body and an arc-shaped mounting plate, wherein the spoiler body and the arc-shaped mounting plate are vertically arranged, the middle part of the rotary hollow shaft penetrates through the shell, and spoiler mounting parts are respectively arranged after two ends of the rotary hollow shaft extend out of the shell;
and two arc-shaped mounting plates are arranged on any vertical side edge of the spoiler body, and the two arc-shaped mounting plates respectively fall on the upper end and the lower end of the rotary hollow shaft and are connected with the rotary hollow shaft in the spoiler mounting part.
The spoiler installation department is including being located positioning groove on the rotating hollow shaft outer wall positioning groove's tank bottom runs through there are four at least mounting holes, it has four at least fixed orificess to run through on the arc mounting panel, the fixed orifices with the mounting hole one-to-one, the fixed orifices with the mounting hole inner wall all is equipped with the internal thread, the fixed orifices with correspond wear to be equipped with same screw in the mounting hole.
Has the advantages that: this scheme is through setting up a plurality of wind field regulating unit on traditional base plate (wedge) that keeps out the wind, can have convenient, swift advantage according to wind field regulating unit's position, gesture and quantity adjustment wind field.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic cross-sectional view taken along line E-E of FIG. 1;
FIG. 4 is a partial enlarged view X of FIG. 3;
FIG. 5 is a schematic structural view of the arc-shaped mounting plate 3 b;
FIG. 6 is a top view of FIG. 5;
fig. 7 is a schematic structural view of the motor assembly 4;
FIG. 8 is a schematic sectional view taken along line A-A of FIG. 7;
FIG. 9 is a schematic cross-sectional view taken along line B-B of FIG. 7;
FIG. 10 is a top view of FIG. 7;
FIG. 11 is a schematic cross-sectional view taken along line C-C of FIG. 10;
fig. 12 is a schematic cross-sectional view taken along line D-D of fig. 10.
Detailed Description
The invention is further illustrated by the following examples and figures.
As shown in fig. 1 to 12, a multipoint adjusting type spoiler device for a wind tunnel test includes a wind shielding substrate 1, a spoiler body 3a, an arc-shaped mounting plate 3b, a rotary hollow shaft 4a, a motor body 5, a first gear 6a, a second gear 6b, a worm 6c, a worm wheel 6d, a third gear 6e, a fourth gear 6f, a fifth gear 6g, an upper shell 7a, a lower shell 7b, a first bearing seat 8, a second bearing seat 9, a worm wheel shaft 10, a gear shaft 11, a first conical bearing 12, a through hole a, a second conical bearing 13, a fixing hole 21, a strip-shaped support lug 20, a mounting hole 22, a screw 19, and a vertical shaft 23, wherein:
the wind shielding base plate 1 is vertically arranged, a plurality of wind field adjusting units 2 are arranged on the wind shielding base plate 1, each wind field adjusting unit 2 comprises a spoiler 3 and a motor assembly 4, the motor assemblies 4 are mounted on the wind shielding base plate 1, and the spoilers 3 are arranged on output shafts of the motor assemblies 4.
Specifically, the method comprises the following steps:
two rows of wind field adjusting groups are arranged on the same side surface of the wind shielding base plate 1, the two rows of wind field adjusting groups are respectively close to two vertical edges of the wind shielding base plate 1, each wind field adjusting group comprises a plurality of wind field adjusting units 2, and the wind field adjusting units 2 are vertically distributed;
motor element 4 sets up keep out the wind side of base plate 1, motor element 4 includes casing 7 and the rotatory hollow shaft 4a of following the outside output of this casing 7, and this rotatory hollow shaft 4a forms motor element 4's output shaft, casing 7 is fixed to be set up keep out wind any side of base plate 1, the vertical setting of rotatory hollow shaft 4a, rotatory hollow shaft 4a is close to keep out wind the vertical edge of base plate 1, install on the rotatory hollow shaft 4a spoiler 3, the vertical setting of spoiler 3.
The top of the wind shielding base plate 1 is provided with a strip-shaped support lug 20, the strip-shaped support lug 20 is horizontally arranged, the strip-shaped support lug 20 and the motor assembly 4 are positioned on the same side surface of the wind shielding substrate 1, the strip-shaped support lug 20 is positioned above the motor component 4, the bottom of the wind shielding base plate 1 is provided with a mounting base, through holes a vertically penetrate through two ends of the strip-shaped support lug 20 respectively, two vertical shafts 23 are vertically arranged between the strip-shaped support lug 20 and the mounting base, the two vertical shafts 23 are close to two vertical edges of the wind shielding base plate 1 respectively, the upper ends of the two vertical shafts 23 are respectively arranged in the through holes a at two ends of the strip-shaped support lug 20 in a penetrating manner, the lower ends of the vertical shafts 23 are inserted into the mounting base, the two vertical shafts 23 correspond to the two rows of wind field adjusting groups one by one, the vertical shafts 23 are movably inserted into the rotary hollow shafts 4a of all the wind field adjusting units 2 in the same row.
The motor component 4 further comprises a motor body 5 and a transmission gear set 6;
the motor body 5 and the transmission gear set 6 are both positioned in the shell 7, the rotary hollow shaft 4a penetrates through the shell 7, the rotary hollow shaft 4a is mounted in the shell 7 through a bearing, and the rotary hollow shaft 4a is vertical to an output shaft of the motor body 5;
the transmission gear set 6 comprises a first gear 6a and a fifth gear 6g, the fifth gear 6g is fixedly sleeved on the outer wall of the rotary hollow shaft 4a, the first gear 6a is fixedly sleeved on the output shaft of the motor body 5, the fifth gear 6g is positioned in the shell 7, and the first gear 6a is in transmission fit connection with the fifth gear 6 g.
The transmission gear set 6 further comprises a second gear 6b, a worm 6c, a worm wheel 6d, a third gear 6e and a fourth gear 6 f;
a first bearing seat 8 and a second bearing seat 9 are arranged in the shell 7, two ends of the worm 6c are respectively arranged on the first bearing seat 8 and the second bearing seat 9 through bearings, the worm 6c is parallel to the output shaft of the motor body 5, the second gear 6b is fixedly sleeved on the worm 6c, the first gear 6a is meshed with the second gear 6b, a worm gear shaft 10 and a gear shaft 11 are arranged in the shell 7, the worm wheel 6d is fixedly sleeved on the worm wheel shaft 10, the worm wheel 6d is meshed with the worm 6c, the third gear 6e is fixedly sleeved on the worm wheel shaft 10, the worm wheel 6d and the third gear 6e rotate coaxially, the gear shaft 11 is fixedly sleeved with the fourth gear 6f, the third gear 6e is meshed with the fourth gear 6f, and the fourth gear 6f is meshed with the fifth gear 6 g.
A hollow shaft through hole is formed in the shell 7, the rotating hollow shaft 4a is arranged in the hollow shaft through hole in a penetrating manner, a first conical bearing 12 and a second conical bearing 13 are arranged on the rotating hollow shaft 4a, the first conical bearing 12 and the second conical bearing 13 are fixedly sleeved on the outer wall of the rotating hollow shaft 4a, and the outer ring of the first conical bearing 12 and the outer ring of the second conical bearing 13 are respectively abutted against the inner wall of the hollow shaft through hole;
the fifth gear 6g is fixedly sleeved on the rotary hollow shaft 4a between the first conical bearing 12 and the second conical bearing 13.
The housing 7 comprises an upper housing 7a and a lower housing 7 b;
the upper shell 7a and the lower shell 7b are buckled with each other, the first bearing seat 8 and the second bearing seat 9 are arranged on the upper shell 7a, the worm gear shaft 10 is parallel to the gear shaft 11, the first conical bearing 12 is arranged in a hollow shaft through hole of the upper shell 7a, and the second conical bearing 13 is arranged in a hollow shaft through hole of the lower shell 7 b.
The body of the motor body 5 is fixedly arranged on the lower shell 7 b.
The spoiler 3 comprises a spoiler body 3a and an arc-shaped mounting plate 3b, the spoiler body 3a and the arc-shaped mounting plate 3b are both vertically arranged, the middle part of the rotary hollow shaft 4a penetrates through the shell 7, and spoiler mounting parts are respectively arranged after two ends of the rotary hollow shaft 4a extend out of the shell 7;
and any vertical side edge of the spoiler body 3a is provided with two arc-shaped mounting plates 3b, and the two arc-shaped mounting plates 3b are respectively arranged in the spoiler mounting part at the upper end and the lower end of the rotary hollow shaft 4a and are connected with the rotary hollow shaft 4 a.
The spoiler installation department is including being located positioning groove on the outer wall of rotary hollow shaft 4a positioning groove's tank bottom runs through there are four at least mounting holes 22, it has four at least fixed orificess 21 to run through on the arc mounting panel 3b, fixed orifices 21 with mounting hole 22 one-to-one, fixed orifices 21 with the mounting hole 22 inner wall all is equipped with the internal thread, fixed orifices 21 and corresponding wear to be equipped with same screw 19 in the mounting hole 22.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (7)
1. The utility model provides a wind tunnel test multiple spot regulation formula vortex device which characterized in that: comprises a wind shielding base plate (1) and a wind field adjusting unit (2);
the wind shielding base plate (1) is vertically arranged, a plurality of wind field adjusting units (2) are arranged on the wind shielding base plate (1), each wind field adjusting unit (2) comprises a spoiler (3) and a motor assembly (4), each motor assembly (4) is installed on the wind shielding base plate (1), and each spoiler (3) is arranged on an output shaft of each motor assembly (4);
two rows of wind field adjusting groups are arranged on the same side face of the wind shielding base plate (1), the two rows of wind field adjusting groups are respectively close to two vertical edges of the wind shielding base plate (1), each wind field adjusting group comprises a plurality of wind field adjusting units (2), and the plurality of wind field adjusting units (2) are vertically distributed;
the motor assembly (4) is arranged on the side face of the wind shielding base plate (1), the motor assembly (4) comprises a shell (7) and a rotary hollow shaft (4 a) which is output outwards from the shell (7), the rotary hollow shaft (4 a) forms an output shaft of the motor assembly (4), the shell (7) is fixedly arranged on any side face of the wind shielding base plate (1), the rotary hollow shaft (4 a) is vertically arranged, the rotary hollow shaft (4 a) is close to the vertical edge of the wind shielding base plate (1), the spoiler (3) is installed on the rotary hollow shaft (4 a), and the spoiler (3) is vertically arranged;
the wind shield comprises a wind shield base plate (1), and is characterized in that a strip-shaped support lug (20) is arranged at the top of the wind shield base plate (1), the strip-shaped support lug (20) is horizontally arranged, the strip-shaped support lug (20) and a motor component (4) are positioned on the same side surface of the wind shield base plate (1), the strip-shaped support lug (20) is positioned above the motor component (4), an installation base is arranged at the bottom of the wind shield base plate (1), through holes (a) are vertically penetrated through the two ends of the strip-shaped support lug (20) respectively, two vertical shafts (23) are vertically arranged between the strip-shaped support lug (20) and the installation base, the two vertical shafts (23) are close to two vertical edges of the wind shield base plate (1) respectively, the upper ends of the two vertical shafts (23) are respectively penetrated through the through holes (a) at the two ends of the strip-shaped support lug (20), the lower ends of the vertical shafts (23) are inserted, the vertical shafts (23) are movably inserted into the rotating hollow shafts (4 a) of all the wind field adjusting units (2) in the same row;
the motor component (4) further comprises a motor body (5) and a transmission gear set (6);
the motor body (5) and the transmission gear set (6) are both positioned in the shell (7), the rotating hollow shaft (4 a) penetrates through the shell (7), the rotating hollow shaft (4 a) is mounted in the shell (7) through a bearing, and the rotating hollow shaft (4 a) is vertical to an output shaft of the motor body (5);
the transmission gear set (6) comprises a first gear (6 a) and a fifth gear (6 g), the fifth gear (6 g) is fixedly sleeved on the outer wall of the rotary hollow shaft (4 a), the first gear (6 a) is fixedly sleeved on the output shaft of the motor body (5), the fifth gear (6 g) is located in the shell (7), and the first gear (6 a) and the fifth gear (6 g) are in transmission fit connection.
2. The wind tunnel test multipoint adjustable spoiler device according to claim 1, wherein: the transmission gear set (6) further comprises a second gear (6 b), a worm (6 c), a worm wheel (6 d), a third gear (6 e) and a fourth gear (6 f);
a first bearing seat (8) and a second bearing seat (9) are arranged in the shell (7), two ends of the worm (6 c) are respectively installed on the first bearing seat (8) and the second bearing seat (9) through bearings, the worm (6 c) is parallel to an output shaft of the motor body (5), the second gear (6 b) is fixedly sleeved on the worm (6 c), the first gear (6 a) is meshed with the second gear (6 b), a worm wheel shaft (10) and a gear shaft (11) are arranged in the shell (7), the worm wheel (6 d) is fixedly sleeved on the worm wheel shaft (10), the worm wheel (6 d) is meshed with the worm (6 c), the third gear (6 e) is further fixedly sleeved on the worm wheel shaft (10), the worm wheel (6 d) and the third gear (6 e) rotate coaxially, the fourth gear (6 f) is fixedly sleeved on the gear shaft (11), the third gear (6 e) meshes with the fourth gear (6 f), and the fourth gear (6 f) meshes with the fifth gear (6 g).
3. The wind tunnel test multipoint adjustable spoiler device according to claim 2, wherein: a hollow shaft through hole is formed in the shell (7), the rotating hollow shaft (4 a) penetrates through the hollow shaft through hole, a first conical bearing (12) and a second conical bearing (13) are arranged on the rotating hollow shaft (4 a), the first conical bearing (12) and the second conical bearing (13) are fixedly sleeved on the outer wall of the rotating hollow shaft (4 a), and the outer ring of the first conical bearing (12) and the outer ring of the second conical bearing (13) are respectively abutted against the inner wall of the hollow shaft through hole;
the fifth gear (6 g) is fixedly sleeved on the rotating hollow shaft (4 a) between the first conical bearing (12) and the second conical bearing (13).
4. The wind tunnel test multipoint adjustable spoiler device according to claim 3, wherein: the housing (7) comprises an upper housing (7 a) and a lower housing (7 b);
the upper shell (7 a) and the lower shell (7 b) are buckled with each other, the first bearing seat (8) and the second bearing seat (9) are arranged on the upper shell (7 a), the worm wheel shaft (10) is parallel to the gear shaft (11), the first conical bearing (12) is arranged in a hollow shaft through hole of the upper shell (7 a), the second conical bearing (13) is arranged in a hollow shaft through hole of the lower shell (7 b) according to claim 3, and the wind tunnel test multipoint adjusting type turbulence device is characterized in that: the housing (7) comprises an upper housing (7 a) and a lower housing (7 b);
the upper shell (7 a) and the lower shell (7 b) are buckled with each other, the first bearing seat (8) and the second bearing seat (9) are arranged on the upper shell (7 a), the worm wheel shaft (10) is parallel to the gear shaft (11), the first conical bearing (12) is arranged in a hollow shaft through hole of the upper shell (7 a), and the second conical bearing (13) is arranged in a hollow shaft through hole of the lower shell (7 b).
5. The wind tunnel test multipoint adjustable spoiler device according to claim 4, wherein: the body of the motor body (5) is fixedly arranged on the lower shell (7 b).
6. The wind tunnel test multipoint adjustable spoiler device according to claim 5, wherein: the spoiler (3) comprises a spoiler body (3 a) and an arc-shaped mounting plate (3 b), the spoiler body (3 a) and the arc-shaped mounting plate (3 b) are vertically arranged, the middle part of the rotary hollow shaft (4 a) penetrates through the shell (7), and spoiler mounting parts are respectively arranged after two ends of the rotary hollow shaft (4 a) extend out of the shell (7);
be equipped with two on any vertical side of spoiler body (3 a) arc mounting panel (3 b), two arc mounting panel (3 b) fall respectively both ends about rotary hollow shaft (4 a) in the spoiler installation department and with rotary hollow shaft (4 a) are connected.
7. The wind tunnel test multipoint adjustable spoiler device according to claim 6, wherein: the spoiler installation department is including being located positioning groove on rotary hollow shaft (4 a) outer wall positioning groove's tank bottom runs through there are four at least mounting holes (22), it has four at least fixed orificess (21) to run through on arc mounting panel (3 b), fixed orifices (21) with mounting hole (22) one-to-one, fixed orifices (21) with mounting hole (22) inner wall all is equipped with the internal thread, fixed orifices (21) and corresponding wear to be equipped with same screw (19) in mounting hole (22).
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| CN107985628A (en) * | 2017-12-13 | 2018-05-04 | 南京林业大学 | The simulation of wind device that wind resistance detects in a kind of agricultural unmanned plane room |
| CN109238627A (en) * | 2018-09-10 | 2019-01-18 | 西安理工大学 | A kind of Multipoint synchronous comb pressure measuring unit applied to wind field characteristic wind tunnel test |
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| JPH068517Y2 (en) * | 1989-03-10 | 1994-03-02 | トヨタ自動車株式会社 | Fluctuating wind generator |
| CN101957255B (en) * | 2010-09-30 | 2011-12-21 | 浙江大学 | Wind tunnel boundary layer simulating wedge and barrier combined device |
| CN202108939U (en) * | 2011-06-23 | 2012-01-11 | 浙江瑞德森机械有限公司 | Geared worm gear speed reducer |
| CN105628332B (en) * | 2016-03-25 | 2018-03-27 | 哈尔滨工业大学深圳研究生院 | The device that boundary layer wind tunnel tests bottom turbulivity is adjusted by changing cylinder rotating speed |
| CN206695972U (en) * | 2017-03-30 | 2017-12-01 | 华南理工大学 | A kind of flow tunnel testing device for being used to simulate thunderstorm downburst |
| CN207991787U (en) * | 2018-03-19 | 2018-10-19 | 广州大学 | A kind of oscillating airfoil grating system for changing wind-tunnel incoming wind field spectral distribution |
| CN108375463B (en) * | 2018-05-16 | 2023-10-27 | 南京林业大学 | Three-dimensional wind field testing system and method for rotor unmanned aerial vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107985628A (en) * | 2017-12-13 | 2018-05-04 | 南京林业大学 | The simulation of wind device that wind resistance detects in a kind of agricultural unmanned plane room |
| CN109238627A (en) * | 2018-09-10 | 2019-01-18 | 西安理工大学 | A kind of Multipoint synchronous comb pressure measuring unit applied to wind field characteristic wind tunnel test |
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